1961 Corvette Specs

Total 1961 Corvettes Built- 10,939 – All Convertibles

For Performance: Corvette Engines are 283-cubic-inch displacement valve-in-head V8’s with 3.88” bore and 3.0” stroke, precision balanced assembly. All engines have independent operating mechanism for each valve, precision-machined forged steel crankshaft, five main bearings, full-pressure lubrication system, full-flow oil filter, 12-volt electrical system, full dual exhaust. Oil-wetted, polyurethane element, buffed aluminum air cleaner (special paper element, tube intake type with Fuel injection). All-aluminum cross-flow radiator. Finned aluminum rocker covers on optional engines.

270*- and 315*- h.p. Corvette V8’s feature special camshaft; high-speed valve system with special valves and mechanical valve lifters; heavy-duty main and connecting rod bearing; distributor-driven tachometer; straight-through type mufflers. Fuel Injection engines have special cylinder heads, pistons, and larger intake valves.

Choice of Transmissions: 3-Speed Synchro-mesh standard equipment. Ratios: 2.47:1 low; 1.53:1 second; 1:1 third; 2.80:1 reverse; floor-mounted gearshift. 4-Speed close-ratio Synchro-Mesh* (R.P.O. 685) Ratios 2.2:1 first; 1.66:1 second; 1.31:1 third; 1.1 fourth; 2.26:1 reverse with manually operated mechanism on floor mounted shift lever to prevent unintentional reverse engagement during shifting. Clutch, 10” semi-centrifugal coil spring. Powerglide automatic (R.P.O. 313) available with 230- and 245- horsepower engines. Floor mounted range selector level.

Power-Matched Rear Axles: Semi-floating hypoid. Rear axle ratios matched to power team. Positraction (R.P.O. 675) rear axle optional* with 3- or 4- speed Synchro-Mesh and choice of ratios. With 3-Speed Synchro-Mesh 3.36:1, 4.11:1, 4.56:1. With 4-Speed Synchro-Mesh 3.70:1, 4.11:1, 4.56:1.

Chassis: Box-girder, X-member reinforced frame. Independent coil spring front suspension with stabilizer bar. Rear suspension by radius rods and outrigger-mounted semi-elliptic leaf springs with stabilizer bar. Direct double-action nitrogen bag shocks absorbers. Unit-balanced tubular propeller shaft and universal joints. Full anti-friction steering gear and balanced linkage- 21:1 overall ratio. Hydraulic 11-inch self-energizing brakes with fade-resistant bonded linings. Hand-operated parking brake on rear wheels. 16.4-gallon fuel tank. Black 6.70 x 15 4-ply rating Tyrex cord tubeless tires, white sidewall tires optional*. Vented chrome wheel covers with simulated knock-off hubs.

Special Equipment For Sports Car Meets: R.P.O. 687 – Special brakes with sintered-metallic facings, finned cast iron brake drums with built-in cooling fan, vented flange plates with air scoops, and fast steering adapter for 16.3:1 overall ratio. Available with Positraction rear axle, 3-Speed or 4-Speed Synchro-Mesh, and 270- or 315-h.p. engine R.P.O. 686 – Special sintered-metallic brake linings available with 3-Speed or 4-Speed Synchro-Mesh. F.O.A. 121 – Temperature-controlled viscous drive fan. R.P.O. 276 – Wide-base wheels with 5 ½” rims; hub caps replace wheel covers. L.P.O. 1408 – Nylon cord tubeless tires, 6.70 x 15 4-ply rating. L.P.O. 1625A – 24-gallon fuel tank.

Body Exterior: Fiber glass reinforced plastic body – sculpted side and rear panels. Magic-Mirror acrylic lacquer finish in seven solid colors: Tuxedo Black, Ermine White, Roman Red, Sateen Silver, Jewel Blue, Fawn Beige, Honduras Maroon. These colors also available in optional* two-tone exteriors with color-keyed Sateen Silver or Ermine While in the sculptured side panels. Front hinged hood. Three-unit front grille. Dual headlights in front fenders. Four taillights. Push-button door handles and key lock. Cowl ventilator. Large luggage locker with spare wheel under floor. Concealed well for folding top behind seats. Choice of manually operated rubberized fabric folding soft top or easily removable plastic hardtop. Power-operating mechanism* for folding soft top. Frame-mounted front and rear wraparound bumpers.

Interior Features: Interior colors in black, blue, red or fawn keyed to exterior colors. Foam rubber padded all-vinyl trimmed bucket seats, individually adjustable. Safety belts. Long padded armrest on each door. Recessed safety reflectors in door sidewall panels. Crank-operated windows, power-operated optional*. Vinyl-covered padded instrument panel. Passenger assist bar in instrumental panel cove with stowage bin below. Bright aluminum and vinyl sidewall trim. Carpeted floor, metal sills and step plates. Competition-type steering wheel. Speedometer, tachometer, ammeter, fuel level, oil pressure and coolant temperature gauges, starter ignition switch with accessory position, and light switch on instrument panel. Directional signals, cigarette lighter, outside and inside rearview mirrors, two speed electric link-driven windshield washer. Ashtray and glove compartment with key lock located between seats. Transistorized push-button signal-seeking radio*, and heater* also available.

Dimensions: Wheelbase, 102”. Overall length 177.2”. Overall height: Soft top up, 52.2”; top down 50.2”; hardtop, 51.5”. Height at door, 33.5”. Road clearance, 6.7”. Overall width, 70.4”. Tread: front 57”; rear 59”.

*Optional at extra cost                                                                                                                 

ENGINE REAR AXLE
H.P. Induction System Compression Ratio Camshaft, Lifters Distributor Points, Advance Transmission Ratio Positraction
230 Std. Single 4-Barrel 9.5:1 Regular, Hydraulic Single, Vacuum & Centrifugal 3-Speed Synchro-Mesh

4-Speed Synchro-Mesh*

Powerglide*

3.36:1

3.70:1

3.55:1

Yes

Yes

No

245* Twin 4-Barrel 9.5:1 Regular, Hydraulic Dual, Full Centrifugal 3-Speed Synchro-Mesh

4-Speed Synchro-Mesh*

Powerglide*

3.36:1

3.70:1

3.55:1

Yes

Yes

No

270* Twin 4-Barrel 9.5:1 Special, Mechanical Dual, Full Centrifugal 3-Speed Synchro-Mesh

4-Speed Synchro-Mesh*

 

3.36:1

3.70:1

 

Yes

Yes

 

275* Ramjet Fuel Injection 11.0:1 Regular,
Hydraulic
Single, Vacuum & Centrifugal 3-Speed Synchro-Mesh

4-Speed Synchro-Mesh*

 

3.36:1

3.70:1

 

Yes

Yes

 

315* Ramjet Fuel Injection 11.0:1 Special, Mechanical Dual, Full Centrifugal 3-Speed Synchro-Mesh

4-Speed Synchro-Mesh*

 

3.36:1

3.70:1

 

Yes

Yes

 

 

*Choice of Positraction rear axle ratios: With 3-Speed Synchro-Mesh – 3.36:1, 4.11:1, 4.56:1

With 4-Speed Synchro-Mesh – 3.70:1, 4.11:1, 4.56:1